OPJ FilesOGW FilesThemes, File TypesOGM FilesOGG FilesOGS FilesTemplates, File TypesOTW FilesOTP FilesOTM FilesOIF FilesImporting, Filter Files (OIF)
A series of Unicode-compliant (UTF-8) file types was added for Origin 2018. Users upgrading from previous versions may recognize that the old familiar file types now have a Unicode counterpart, denoted by an appended 'u' (e.g. *.opj => *.opju). With the exception of the *.opj file type, Origin(since Origin 2023) will read and write both the Unicode and non-Unicode file types and non-Unicode file types remain backward compatible with earlier versions of Origin.
File Types, Origin